Which .450 NE are you talking about?

Kynoch is offering loaded ammo for 4 different 450's. Kynoch

I haven't bought any of thoses calibers but the others caliber brass I have bought recently is top quality.

I just got some 450 Musket number 2 Bertram 2nds and other than some oil dents or bent mouths they are a world of improvement over what Bertram sold 3 or 4 years ago as 1st class.